On the noise issue, all strata blocks have a noise law
This is the standard one from the regulations
1 Noise
An owner or occupier of a lot must not create any noise on the parcel likely to interfere with the peaceful enjoyment of the owner or occupier of another lot or of any person lawfully using common property.
The “power tools rule” actually allows you to break the standard noise law at certain times
On the building renovation approval, the strata needs to be provided comfort that any renovation is not dangerous (damaging the structural integrity of the building) it has massive liability/insurance issues.